Junhui Hu received his Ph.D. from Tokyo Institute of Technology, Japan, in 1997, and B. E. and M. E. degrees in Electrical Engineering from Zhejiang University, Hangzhou, China, in 1986 and 1989, respectively. Currently he works for Nanjing University of Aeronautics & Astronautics, China, as a full professor. His research interests are in ultrasonic sensors and actuators, ultrasonic nanofabrication, and ultrasonic micro/nano/molecular manipulations. He is a Chang-Jiang Distinguished Professor, China, and an IAAM Fellow.